Deciduous teeth, also known as baby teeth or primary teeth, are temporary teeth that eventually fall out and are replaced by permanent adult teeth. Some synonyms for deciduous tooth could include milk tooth, baby tooth, temporary tooth, and primary tooth. These terms may be used interchangeably depending on cultural or regional vocabulary preferences. Deciduous teeth typically erupt around the age of six months and are usually fully replaced by permanent teeth by the age of 12 or 13. It is important to take care of baby teeth as they can impact the growth and development of permanent adult teeth. Daily brushing and dental visits are recommended for maintaining healthy deciduous teeth.